Processing of metallic materials by Laser Powder Bed Fusion at elevated temperatures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU149221" target="_blank" >RIV/00216305:26210/23:PU149221 - isvavai.cz</a>
Result on the web
<a href="https://www.mamc.at/" target="_blank" >https://www.mamc.at/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Processing of metallic materials by Laser Powder Bed Fusion at elevated temperatures
Original language description
Laser Powder Bed Fusion (L-PBF) is a 3D printing technology that has gained worldwide acceptance due to its high resolution and accuracy. However, high equipment and material costs, residual stresses in the manufactured parts and internal defects are still major barriers to widespread industrial use. Preheating is a process in which the powder bed is heated during the production run. This leads to a homogenisation of the temperature field, which usually results in lower residual stresses. It also affects the interaction between the laser beam and the powder as well as the solidification process. The effects of high temperature preheating on residual stresses have been studied on Ti6Al4V and Inconel 939. This study evaluates the suitability of preheating to reduce the number of support structures, thereby reducing production costs and environmental impact. The results showed that preheating at high temperatures led to a rapid reduction of residual stresses in Ti6Al4V, but also to a rapid powder degrada
Czech name
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Czech description
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Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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